NEW CASTLE, Ind. (AP) — A woman who was severely beaten by an inmate at the New Castle Correctional Facility has sued the prison, her attacker and others.

Court documents say Martha Clark was an employee of a prison vendor on Nov. 29, 2014, when she was attacked by inmate Robert Hudson. Hudson later pleaded guilty to two counts of battery and was sentenced to four more years in prison.

The Star Press reports that in the lawsuit filed in Henry County Court, Clark alleges her employers “failed to provide a safe working environment” for her.

The suit also alleges the other defendants “violated their own politics and procedures” in the incident.

Additional defendants include the state of Indiana, the Indiana attorney general’s office, the state Department of Correction and the GEO Group, the private firm that operates the New Castle prison.